Green transportation advanced by leaps and bounds this week as a student-built 155 MPH biofuel truck broke a world speed record and we brought you exclusive photos of the 6 sexiest green cars from the Los Angeles auto show. We also caught wind of several hot new vehicles on the horizon as Infiniti leaked the first shots of its upcoming plug-in hybrid sports car, SynergEthic unveiled its versatile three-wheeled Tilter EV, and South Africa rolled out the Joule - its first electric vehicle. Meanwhile, Jay Leno announced that he has driven his Chevy volt for an astounding 11,000 miles on a single tank of gas and a team of Northwestern University researchers developed a new breakthrough battery that could charge EVs in ten minutes flat and increase their range by 500 miles.